Chris Bryant wrote:
Depending on the valve, on some you can replace just the packing without having to empty the tank- they can shut the valve off, remove the handle and replace the packing.
I cannot really advise you to use it, but if it were mine, I would open the valve all the way, check with leak solution, and if it isn't leaking, I would use it.
Texas law does NOT allow rebuilding of LP valves and regulators and I suspect other states that have LP laws state the same. Besides you are at a big liability by attempting to rebuild a valve(commercially). Doug